Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

APES: Chapter 3,4 & 11 > Chapter 3: > Flashcards

Chapter 3: Flashcards

1
Q

Population

A

A group of individual of a particular species in a certain area

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Evolution

A

Consists of genetic change in organisms across generation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Natural selection

A

The process by which inherited characteristics that enhance survival and reproduction are passed on more frequently to future generations, altering the genetic makeup of population through time

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Charles Darwin and Alfred Russell Wallace

A

In 1858, both proposed the concept of natural selection

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Adaptive trait or adaptation

A

A trait or characteristics that promotes success

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Mutations

A

Accidental changes in DNA that can give rise to genetic variation among individuals

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Artificial selection

A

The process the of selection under human direction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Biodiversity or biological diversity

A

The variety of life across all levels of biological organization

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Speciation

A

The process of generating new species from a single species

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Phylogenic trees

A

Diagrams that represent history of divergence and illustrate hypotheses of how divergence took place

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Extinction

A

The disappearance of a species

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Endemic species

A

A species that only occurs in a single place

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Mass extinction events

A

They haven’t five events in earths history that wiped out 50 to 95% of earths species each time

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Ecology

A

Is the study of interactions among organisms and between organisms and their environment

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Population ecology:

A

Examine the dynamics of a population change and the factors it effects

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Communities

A

made up of multiple interacting species that live in the same area

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Community ecology

A

Focuses on the species diverse city and interactions among species

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Ecosystems

A

Encompasses communities and the abiotic material and forces with which are members interact

19
Q

Ecosystem ecology

A

Reveals pattern such as the flow of energy and nutrients by studying living in non living components of the system

20
Q

Habitat

A

The specific environment in which an organism lives, and consists of living and non living things around it

21
Q

Habitat Selection:

A

Mobile organism can choose where they live

22
Q

Habitat use

A

Each organism thrives in a certain habitats and not others

23
Q

Niche

A

Reflects the use of resources and it’s functional role in a community

24
Q

Specialists

A

A species with very specific requirements

25
Q

generalists

A

Species with broad tolerances and have wide range of habitat or resources

26
Q

Population size

A

The number of individual organisms present at a given time

27
Q

Population density:

A

The number of individuals in a population per unit area

28
Q

Population distribution of population dispersion

A

Spatial arrangement of organisms within a particular area

29
Q

Sex ratio

A

The ratio of males to females

30
Q

Age distribution or age structure

A

The relative numbers of organisms of each age within a population

31
Q

Survivorship curves

A

Likelihood of death varies with age and is graphically shown

32
Q

Demographers

A

Scientists who study human population and population changes

33
Q

Natural rate of population growth

A

Determined by subtracting the death rate from the birthrate

34
Q

Population growth rate

A

Equal The crude birth rate plus the immigration rate minus accrued rate plus the emigration rate

35
Q

Exponential growth

A

When a population Increases by fixed percentage each year

36
Q

limiting factors

A

Physical chemical and biological characteristics of the environment that every population is eventually contained by

37
Q

Carrying capacity

A

Determined by

Interactions of limiting factors

38
Q

Logistic growth curve

A

And S shaped curve that shows a population that increases sharply at first the levels off, affected by limiting factors

39
Q

Density dependent factors

A

Population dependent on density

40
Q

density independent factors

A

The winds not affected by population density

41
Q

K selected species

A

Species that devote large amounts of energy and resources to caring for a few offspring

42
Q

R selected species

A

Have high biotic potential and devote their energy to producing as many offspring is possible in a relatively short amount of time

43
Q

Ecotourism

A

Tourism attracted to areas by ecology

44
Q

Species

A

A particular type of organism that share certain characteristics and can breed with one another to produce fertile offspring

APES: Chapter 3,4 & 11 (3 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions